Question at position 3 Which of the following intermolecular forces is/are demonstrated by pure CH3F? Choose the single best answer. 1. hydrogen bonding 2. ionic forces 3. dispersion forces 4. dipole-dipole forces 3 only1 only2 and 4 only3 and 4 only4 only2 only1 and 3 only1 and 2 only单项选择题

A

3 only

B

1 only

C

2 and 4 only

D

3 and 4 only

E

4 only

F

2 only

G

1 and 3 only

H

1 and 2 only

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Which intermolecular interactions contribute most to the water solubility of organic compounds? A. ionic interactions and dispersion forces B. hydrogen bonding and ion-dipole interactions C. dispersion forces and hydrogen bonding D. dipole-dipole interactions and dispersion forces

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